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General control line discussion => Open Forum => Topic started by: Dick Pacini on June 25, 2012, 01:08:07 PM

Title: Scored A New Sig Magnum Still In The Wrapper
Post by: Dick Pacini on June 25, 2012, 01:08:07 PM
By chance I saw it in the classified ads here on the forum.  I have always been curious about this airplane, so when one cropped up, I was all over it.

Impressive kit.  Foam wing and tail feathers,  nice building manual and decent hardware.  The packing in the box was a 1993 newspaper wadded up, so this puppy is old enough to vote.

So, It took its place in the rack.  Anybody have good stories to tell about it?  Strange that Sig dropped it.
Title: Re: Scored A New Sig Magnum Still In The Wrapper
Post by: Balsa Butcher on June 25, 2012, 01:22:48 PM
A number were made and flown here in NorCal, including one by myself. Only tip I might throw in is: the wing is hollow, a little too hollow. One large hollowed cut out. If you use the kit wing cut a foam "spar" and insert it into this hollow to keep the airfoil from flattening out later on down the road.  For rough field use I'd go with CF fuselage mounted landing gear. Engine wise, I'd use good ST G-51 but there are many that would work well. 8)
Title: Re: Scored A New Sig Magnum Still In The Wrapper
Post by: proparc on June 25, 2012, 01:44:36 PM
Don't put the landing gear in the wing.
Title: Re: Scored A New Sig Magnum Still In The Wrapper
Post by: Glenn (Gravitywell) Reach on June 25, 2012, 06:08:42 PM
As per proparc....DO NOT PUT THE LANDING GEAR IN THE WING.....and do put in the spar as well.  I both ripped out the landing gear and wrinkled the skin on the wing cause of flexing.  Loved the plane though!
Title: Re: Scored A New Sig Magnum Still In The Wrapper
Post by: steven yampolsky on June 25, 2012, 07:14:33 PM
By chance I saw it in the classified ads here on the forum.  I have always been curious about this airplane, so when one cropped up, I was all over it.

Impressive kit.  Foam wing and tail feathers,  nice building manual and decent hardware.  The packing in the box was a 1993 newspaper wadded up, so this puppy is old enough to vote.

So, It took its place in the rack.  Anybody have good stories to tell about it?  Strange that Sig dropped it.

I flew a nice Magnum with a Double Star 54. The model was quiet a bit nose heavy so you may want to look at way to mitigate the issue. See if the wing can be moved forward 1/2(more if you are planning to use a heavy motor like ST51).

By the way. Double Star 54 has got to be THE MOST underrated motor. It weights less than 9oz(with TWO ball bearings!) and makes the power of a ST60.
Title: Re: Scored A New Sig Magnum Still In The Wrapper
Post by: john e. holliday on June 26, 2012, 07:09:04 AM
An easy way to cure nose heavy and to help the plane fly better.  Add three inches to fuse length and move stab/elevator accordingly. H^^
Title: Re: Scored A New Sig Magnum Still In The Wrapper
Post by: louie klein on June 26, 2012, 08:16:50 AM
Hi Dick!, Go to builtrightflyright web site and after entering pick "helpful hints" at the bottom. You will find a list and at the bottom is a big build article by Walter himself about the Magnum. EXCELLENT!---LOUIE  D>K
Title: Re: Scored A New Sig Magnum Still In The Wrapper
Post by: Allan Perret on June 26, 2012, 08:54:36 AM
I had two Magnums with ST-51, great combo. 
Others had always told me the stock kits build on the heavy side. 
Mine came out 62 and 64oz. 
That's not even close to heavy for 700 squares.
I also got one still in the shrink wrap about 4 months ago right here in the classified.
Title: Re: Scored A New Sig Magnum Still In The Wrapper
Post by: Allan Perret on June 26, 2012, 08:56:08 AM
Double Star 54 has got to be THE MOST underrated motor. It weights less than 9oz(with TWO ball bearings!) and makes the power of a ST60.
Too bad Tom doesnt have a rear exh version. 
Hint Hint.
Title: Re: Scored A New Sig Magnum Still In The Wrapper
Post by: Larry Cunningham on June 26, 2012, 03:59:23 PM
Instead of using dope or (far worse) monokote to cover the built up flaps, try planking them with 1/32" balsa or 1/64" plywood. You'll be much happier with the result.

Power with an ST .60 if you can find a good one.

Not a good candidate for electric power, I'm thinking. But I've been wrong about such things before.

The Magnum is just a big old sweet flying pussycat of a plane, which goes right where it is pointed. With a larger motor, it will pull your arm out of the socket.

Mike Pratt's excellent design.

L.

"Be wiser than other people if you can; but do not tell them so." -Lord Chesterfield
Title: Re: Scored A New Sig Magnum Still In The Wrapper
Post by: Ward Van Duzer on July 01, 2012, 09:35:39 AM
Mikey's MAGNUM Force (top), and Profile FORCE (w/Chip wing) bottom. Magnum was powered by a Piped P.A. .61. The little guy by an OS .32 on a pipe.


Ward
Title: Re: Scored A New Sig Magnum Still In The Wrapper
Post by: Ward Van Duzer on July 01, 2012, 09:45:07 AM
And the Delta FORCE!


W.
Title: Re: Scored A New Sig Magnum Still In The Wrapper
Post by: RogerGreene on July 01, 2012, 06:21:42 PM
Hi Ward,

How well does the Delta FORCE turn?

Roger
Title: Re: Scored A New Sig Magnum Still In The Wrapper
Post by: Ward Van Duzer on July 02, 2012, 06:53:19 AM
Sorry, can't answer that. That's Mikey's ship. He knew I was a Force Fan and sent that on to tease me!

W.   ::)
Title: Re: Scored A New Sig Magnum Still In The Wrapper
Post by: john e. holliday on July 02, 2012, 08:00:01 AM
I remember when he had the Delta Force at a VSC a few years ago.  Have been waiting for plans or details ever since.   H^^